| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package org.apache.geode.internal.cache.eviction; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| |
| import org.apache.geode.internal.cache.BucketRegion; |
| import org.apache.geode.internal.cache.versions.RegionVersionVector; |
| |
| public class AbstractEvictionListTest { |
| |
| @Rule |
| public ExpectedException thrown = ExpectedException.none(); |
| |
| private BucketRegion bucketRegion; |
| private EvictionCounters stats; |
| private EvictionController controller; |
| |
| @Before |
| public void setup() { |
| bucketRegion = mock(BucketRegion.class); |
| stats = mock(EvictionCounters.class); |
| controller = mock(EvictionController.class); |
| when(controller.getCounters()).thenReturn(stats); |
| } |
| |
| @Test |
| public void sizeIsZeroByDefault() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| assertThat(evictionList.size()).isZero(); |
| } |
| |
| @Test |
| public void sizeIncreasesWithAppendEntry() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| |
| evictionList.appendEntry(new LinkableEvictionNode()); |
| assertThat(evictionList.size()).isEqualTo(1); |
| |
| evictionList.appendEntry(new LinkableEvictionNode()); |
| assertThat(evictionList.size()).isEqualTo(2); |
| } |
| |
| @Test |
| public void sizeDecreasedWhenDecremented() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| |
| evictionList.appendEntry(new LinkableEvictionNode()); |
| evictionList.decrementSize(); |
| assertThat(evictionList.size()).isZero(); |
| } |
| |
| @Test |
| public void getStatisticsReturnsRightObject() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| assertThat(evictionList.getStatistics()).isSameAs(stats); |
| } |
| |
| @Test |
| public void closeStats() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| evictionList.closeStats(); |
| verify(stats).close(); |
| } |
| |
| @Test |
| public void clearWithVersionVectorDoesNotChangeStats() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| |
| evictionList.appendEntry(new LinkableEvictionNode()); |
| assertThat(evictionList.size()).isEqualTo(1); |
| evictionList.clear(mock(RegionVersionVector.class), bucketRegion); |
| assertThat(evictionList.size()).isEqualTo(1); |
| } |
| |
| @Test |
| public void clearWithoutBucketRegionResetsStats() throws Exception { |
| TestEvictionList noBucketRegionEvictionList = new TestEvictionList(controller); |
| |
| noBucketRegionEvictionList.appendEntry(new LinkableEvictionNode()); |
| assertThat(noBucketRegionEvictionList.size()).isEqualTo(1); |
| noBucketRegionEvictionList.clear(null, null); |
| verify(stats).resetCounter(); |
| assertThat(noBucketRegionEvictionList.size()).isZero(); |
| } |
| |
| @Test |
| public void clearWithBucketRegionResetsBucketStats() throws Exception { |
| long bucketSize = 10L; |
| when(bucketRegion.getCounter()).thenReturn(bucketSize); |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| |
| evictionList.clear(null, bucketRegion); |
| verify(bucketRegion).resetCounter(); |
| verify(stats).decrementCounter(bucketSize); |
| assertThat(evictionList.size()).isZero(); |
| } |
| |
| @Test |
| public void appendEntryAlreadyInListDoesNothing() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| when(node.next()).thenReturn(mock(EvictionNode.class)); |
| |
| evictionList.appendEntry(node); |
| verify(node, never()).unsetRecentlyUsed(); |
| } |
| |
| @Test |
| public void appendingNewEntryAddsItToList() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| evictionList.appendEntry(node); |
| |
| verify(node).setNext(evictionList.tail); |
| verify(node).setPrevious(evictionList.head); |
| assertThat(evictionList.tail.previous()).isSameAs(node); |
| assertThat(evictionList.head.next()).isSameAs(node); |
| assertThat(evictionList.size()).isEqualTo(1); |
| } |
| |
| @Test |
| public void unlinkEntryNotInListTest() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| |
| evictionList.destroyEntry(node); |
| assertThat(evictionList.size()).isEqualTo(0); |
| } |
| |
| @Test |
| public void unlinkEntryInListTest() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| when(node.next()).thenReturn(evictionList.tail); |
| when(node.previous()).thenReturn(evictionList.head); |
| |
| evictionList.appendEntry(mock(EvictionNode.class)); |
| assertThat(evictionList.size()).isEqualTo(1); |
| |
| evictionList.destroyEntry(node); |
| assertThat(evictionList.size()).isEqualTo(0); |
| verify(stats).incDestroys(); |
| } |
| |
| @Test |
| public void unlinkHeadOnEmptyListReturnsNull() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| assertThat(evictionList.unlinkHeadEntry()).isNull(); |
| } |
| |
| @Test |
| public void unlinkTailOnEmptyListReturnsNull() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| assertThat(evictionList.unlinkTailEntry()).isNull(); |
| } |
| |
| @Test |
| public void unlinkHeadInListTest() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| when(node.next()).thenReturn(null, evictionList.tail); |
| when(node.previous()).thenReturn(evictionList.head); |
| evictionList.appendEntry(node); |
| |
| assertThat(evictionList.unlinkHeadEntry()).isSameAs(node); |
| assertThat(evictionList.size()).isEqualTo(0); |
| } |
| |
| @Test |
| public void unlinkTailInListTest() throws Exception { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| when(node.next()).thenReturn(null, evictionList.tail); |
| when(node.previous()).thenReturn(evictionList.head); |
| evictionList.appendEntry(node); |
| |
| assertThat(evictionList.unlinkTailEntry()).isSameAs(node); |
| assertThat(evictionList.size()).isEqualTo(0); |
| } |
| |
| @Test |
| public void nodeUsedByTransactionIsNotEvictable() { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| when(node.isInUseByTransaction()).thenReturn(true); |
| |
| assertThat(evictionList.isEvictable(node)).isFalse(); |
| } |
| |
| @Test |
| public void evictedNodeIsNotEvictable() { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| when(node.isEvicted()).thenReturn(true); |
| |
| assertThat(evictionList.isEvictable(node)).isFalse(); |
| } |
| |
| @Test |
| public void defaultNodeIsEvictable() { |
| TestEvictionList evictionList = new TestEvictionList(controller); |
| EvictionNode node = mock(EvictionNode.class); |
| |
| assertThat(evictionList.isEvictable(node)).isTrue(); |
| } |
| |
| private static class TestEvictionList extends AbstractEvictionList { |
| |
| TestEvictionList(EvictionController controller) { |
| super(controller); |
| } |
| |
| @Override |
| public EvictableEntry getEvictableEntry() { |
| return null; |
| } |
| |
| @Override |
| public void incrementRecentlyUsed() { |
| |
| } |
| } |
| |
| } |